:root {
  --navy: #071b3a;
  --navy-2: #0b2d5c;
  --blue: #bdeeff;
  --cyan: #79ddf7;
  --lime: #e7ff17;
  --yellow: #f8ff5b;
  --white: #ffffff;
  --paper: #f8fbff;
  --ink: #081a37;
  --muted: #5f6f86;
  --line: rgba(8, 26, 55, 0.14);
  --shadow: 0 26px 80px rgba(5, 31, 70, 0.16);
  --radius: 28px;
  --container: 1180px;
  --header-h: 78px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP",
    system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}

img {
  display: block;
  width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 9999;
  padding: 10px 14px;
  color: var(--white);
  background: var(--navy);
  transform: translateY(-140%);
  transition: transform .2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.announcement {
  color: var(--navy);
  background: var(--lime);
  border-bottom: 1px solid rgba(7, 27, 58, .08);
}

.announcement__inner {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  font-size: 13px;
}

.announcement__inner p {
  margin: 0;
}

.announcement__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 24px;
  padding-inline: 8px;
  border: 1px solid var(--navy);
  border-radius: 99px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
}

.announcement__link {
  font-weight: 800;
  border-bottom: 1px solid currentColor;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(248, 251, 255, .86);
  border-bottom: 1px solid rgba(7, 27, 58, .08);
  backdrop-filter: blur(18px);
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
}

.brand__mark {
  display: inline-grid;
  place-items: center;
  width: 42px;
  aspect-ratio: 1;
  color: var(--navy);
  background: var(--lime);
  border: 2px solid var(--navy);
  border-radius: 50%;
  font-family: Georgia, serif;
  font-size: 18px;
  letter-spacing: -.06em;
}

.brand__text {
  font-size: 19px;
  letter-spacing: -.04em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
  font-size: 14px;
  font-weight: 700;
}

.nav a {
  position: relative;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background: var(--navy);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .25s ease;
}

.nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 56px;
  padding: 14px 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 900;
  line-height: 1;
  transition:
    transform .2s ease,
    box-shadow .2s ease,
    background-color .2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button--small {
  min-height: 44px;
  padding: 12px 18px;
  font-size: 13px;
}

.button--dark {
  color: var(--white);
  background: var(--navy);
  box-shadow: 0 14px 34px rgba(7, 27, 58, .16);
}

.button--primary {
  color: var(--navy);
  background: var(--lime);
  border-color: rgba(7, 27, 58, .22);
  box-shadow: 0 18px 40px rgba(174, 210, 0, .25);
}

.button--primary:hover {
  box-shadow: 0 22px 50px rgba(174, 210, 0, .34);
}

.button--wide {
  min-width: 280px;
}

.hero {
  position: relative;
  isolation: isolate;
  padding: 66px 0 0;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255,255,255,.92), rgba(230,247,255,.94)),
    radial-gradient(circle at 10% 10%, #fff 0 25%, transparent 52%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  opacity: .32;
  background-image:
    linear-gradient(rgba(7, 27, 58, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 27, 58, .08) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, #000, transparent 74%);
}

.hero__orb {
  position: absolute;
  z-index: -1;
  border-radius: 50%;
  filter: blur(2px);
}

.hero__orb--one {
  width: 360px;
  aspect-ratio: 1;
  right: -120px;
  top: 40px;
  background: rgba(121, 221, 247, .56);
}

.hero__orb--two {
  width: 240px;
  aspect-ratio: 1;
  left: -100px;
  bottom: 40px;
  background: rgba(231, 255, 23, .52);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(380px, .98fr);
  align-items: center;
  gap: 46px;
}

.eyebrow,
.section-heading__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .18em;
}

.eyebrow__dot {
  width: 12px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 6px rgba(231, 255, 23, .3);
}

.hero__title {
  margin: 0;
  color: var(--navy);
  font-weight: 900;
  line-height: .95;
  letter-spacing: -.075em;
}

.hero__title-kicker {
  display: block;
  margin-bottom: 10px;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(28px, 3.2vw, 48px);
  font-weight: 700;
  letter-spacing: -.04em;
}

.hero__title-main {
  display: block;
  font-size: clamp(64px, 8.1vw, 118px);
  white-space: nowrap;
}

.hero__outline {
  display: inline-block;
  padding-right: .06em;
  color: transparent;
  -webkit-text-stroke: 2px var(--navy);
  text-stroke: 2px var(--navy);
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: -.1em;
  transform: rotate(-2deg);
}

.hero__highlight {
  position: relative;
  z-index: 0;
}

.hero__highlight::before {
  content: "";
  position: absolute;
  z-index: -1;
  left: -4%;
  right: -4%;
  bottom: 8%;
  height: 24%;
  background: var(--lime);
  transform: rotate(-2deg) skewX(-10deg);
}

.hero__title-bottom {
  display: block;
  font-size: clamp(58px, 7.3vw, 108px);
}

.hero__lead {
  max-width: 680px;
  margin: 28px 0 0;
  color: #32445f;
  font-size: clamp(16px, 1.7vw, 20px);
  font-weight: 600;
}

.hero__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 30px;
  border: 1px solid rgba(7, 27, 58, .14);
  border-radius: 20px;
  background: rgba(255,255,255,.7);
  backdrop-filter: blur(12px);
  overflow: hidden;
}

.meta-card {
  padding: 16px 18px;
}

.meta-card + .meta-card {
  border-left: 1px solid rgba(7, 27, 58, .12);
}

.meta-card__label {
  display: block;
  margin-bottom: 2px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .16em;
}

.meta-card strong {
  display: block;
  font-size: 14px;
  line-height: 1.45;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 26px;
}

.text-link {
  font-size: 14px;
  font-weight: 900;
  border-bottom: 1px solid currentColor;
}

.hero__note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 12px;
}

.hero__note-icon {
  display: inline-grid;
  place-items: center;
  width: 24px;
  aspect-ratio: 1;
  color: var(--navy);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 50%;
  font-weight: 900;
}

.hero__visual {
  position: relative;
  min-height: 650px;
}

.hero__image-frame {
  position: absolute;
  inset: 10px 26px 0 52px;
  overflow: hidden;
  border: 1px solid rgba(7, 27, 58, .14);
  border-radius: 42% 42% 28px 28px / 24% 24% 28px 28px;
  box-shadow: var(--shadow);
  transform: rotate(1.2deg);
  background: #dff4ff;
}

.hero__image-frame img {
  height: 100%;
  object-fit: cover;
  object-position: 58% center;
  transform: scale(1.04);
}

.hero__sticker {
  position: absolute;
  display: grid;
  place-items: center;
  width: 122px;
  aspect-ratio: 1;
  padding: 14px;
  color: var(--navy);
  background: var(--lime);
  border: 2px solid var(--navy);
  border-radius: 50%;
  text-align: center;
  font-weight: 900;
  line-height: 1.25;
  box-shadow: 10px 12px 0 rgba(7, 27, 58, .12);
}

.hero__sticker--top {
  right: -4px;
  top: 72px;
  transform: rotate(8deg);
}

.hero__sticker--bottom {
  left: 0;
  bottom: 74px;
  background: var(--white);
  transform: rotate(-10deg);
}

.hero__line {
  position: absolute;
  right: 16px;
  bottom: 34px;
  width: 62%;
  height: 20px;
  border-top: 8px solid var(--lime);
  border-radius: 50%;
  transform: rotate(-7deg);
}

.hero__ticker {
  margin-top: 60px;
  padding: 18px 0;
  overflow: hidden;
  border-top: 1px solid rgba(7, 27, 58, .1);
}

.ticker__track {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  min-width: max-content;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  white-space: nowrap;
}

.ticker__track i {
  width: 7px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(231,255,23,.28);
}

.section {
  padding: 112px 0;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 48px;
}

.section-heading h2,
.experience__copy h2,
.faq h2,
.event-card h2,
.final-cta h2 {
  margin: 0;
  font-size: clamp(34px, 4.7vw, 68px);
  line-height: 1.18;
  letter-spacing: -.055em;
}

.section-heading > p:last-child {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.section-heading--light {
  color: var(--white);
}

.section-heading--light .section-heading__eyebrow {
  color: var(--lime);
}

.intro {
  background: var(--white);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.feature-card {
  position: relative;
  min-height: 300px;
  padding: 34px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, #fff, #f2f9ff);
}

.feature-card::after {
  content: "";
  position: absolute;
  right: -50px;
  bottom: -70px;
  width: 180px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--lime);
  opacity: .72;
}

.feature-card__number {
  display: inline-block;
  margin-bottom: 80px;
  font-family: Georgia, serif;
  font-size: 18px;
  font-weight: 700;
}

.feature-card h3 {
  position: relative;
  z-index: 1;
  margin: 0 0 12px;
  font-size: 24px;
  letter-spacing: -.03em;
}

.feature-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--muted);
}

.program {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 18% 16%, rgba(121,221,247,.28), transparent 24%),
    radial-gradient(circle at 86% 80%, rgba(231,255,23,.12), transparent 22%),
    var(--navy);
}

.program::before {
  content: "AI";
  position: absolute;
  right: -1vw;
  top: -9vw;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,.1);
  font-family: Georgia, serif;
  font-size: min(46vw, 620px);
  line-height: 1;
}

.steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.step-card {
  min-height: 350px;
  padding: 24px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 24px;
  background: rgba(255,255,255,.07);
  backdrop-filter: blur(12px);
}

.step-card:nth-child(3) {
  color: var(--navy);
  background: var(--lime);
  transform: translateY(-20px);
}

.step-card__icon {
  display: grid;
  place-items: center;
  width: 50px;
  aspect-ratio: 1;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: Georgia, serif;
  font-weight: 700;
}

.step-card__label {
  margin: 76px 0 10px;
  color: var(--cyan);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .16em;
}

.step-card:nth-child(3) .step-card__label {
  color: var(--navy);
}

.step-card h3 {
  margin: 0 0 14px;
  font-size: 22px;
  line-height: 1.35;
  letter-spacing: -.04em;
}

.step-card > p:last-child {
  margin: 0;
  color: rgba(255,255,255,.72);
  font-size: 14px;
}

.step-card:nth-child(3) > p:last-child {
  color: rgba(7,27,58,.72);
}

.experience {
  background:
    linear-gradient(90deg, rgba(121,221,247,.15), transparent 45%),
    var(--paper);
}

.experience__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
  align-items: center;
  gap: 80px;
}

.experience__copy > p:not(.section-heading__eyebrow) {
  color: var(--muted);
  font-size: 17px;
}

.check-list {
  display: grid;
  gap: 14px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 16px 18px 16px 54px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--white);
  font-weight: 700;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 18px;
  top: 50%;
  display: grid;
  place-items: center;
  width: 24px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--lime);
  transform: translateY(-50%);
  font-size: 13px;
  font-weight: 900;
}

.experience__panel {
  position: relative;
  min-height: 550px;
  padding: 36px;
  overflow: hidden;
  color: var(--navy);
  border: 1px solid rgba(7, 27, 58, .12);
  border-radius: 36px;
  background:
    linear-gradient(145deg, rgba(255,255,255,.86), rgba(175,235,255,.85)),
    var(--blue);
  box-shadow: var(--shadow);
}

.experience__panel::before {
  content: "";
  position: absolute;
  left: -18%;
  bottom: -20%;
  width: 86%;
  aspect-ratio: 1;
  border: 26px solid var(--lime);
  border-radius: 50%;
  opacity: .86;
}

.experience__panel-label {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .16em;
}

.experience__bigtext {
  position: relative;
  z-index: 1;
  margin-top: 30px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(84px, 10vw, 150px);
  font-weight: 700;
  line-height: .76;
  letter-spacing: -.08em;
}

.experience__accent {
  position: absolute;
  right: 28px;
  bottom: 46px;
  z-index: 1;
  padding: 12px 18px;
  background: var(--white);
  border: 2px solid var(--navy);
  transform: rotate(-7deg);
  font-family: "Yu Mincho", serif;
  font-size: 24px;
  font-weight: 700;
}

.event {
  padding-top: 20px;
  background: var(--paper);
}

.event-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 46px;
  padding: 54px;
  color: var(--white);
  border-radius: 40px;
  background:
    radial-gradient(circle at 90% 5%, rgba(121,221,247,.28), transparent 24%),
    var(--navy);
  box-shadow: var(--shadow);
}

.event-card__lead {
  max-width: 690px;
  color: rgba(255,255,255,.72);
}

.event-detail {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 34px 0;
  border-top: 1px solid rgba(255,255,255,.14);
}

.event-detail > div {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,.14);
}

.event-detail dt {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 900;
}

.event-detail dd {
  margin: 0;
  font-weight: 800;
}

.event-card__microcopy {
  margin: 12px 0 0;
  color: rgba(255,255,255,.55);
  font-size: 12px;
}

.event-card__microcopy code {
  color: var(--white);
}

.event-card__date-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 380px;
  color: var(--navy);
  border-radius: 28px;
  background: var(--lime);
  transform: rotate(2deg);
}

.event-card__month {
  font-family: Georgia, serif;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .16em;
}

.event-card__day {
  margin: -6px 0;
  font-family: Georgia, serif;
  font-size: 150px;
  line-height: 1;
  letter-spacing: -.08em;
}

.event-card__weekday {
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .1em;
}

.faq {
  background: var(--white);
}

.faq__grid {
  display: grid;
  grid-template-columns: .7fr 1.3fr;
  gap: 80px;
}

.accordion {
  border-top: 1px solid var(--line);
}

.accordion details {
  border-bottom: 1px solid var(--line);
}

.accordion summary {
  position: relative;
  padding: 26px 50px 26px 0;
  cursor: pointer;
  list-style: none;
  font-size: 18px;
  font-weight: 900;
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  display: grid;
  place-items: center;
  width: 32px;
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 50%;
  transform: translateY(-50%);
  transition: transform .2s ease;
}

.accordion details[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.accordion details p {
  margin: -4px 0 24px;
  padding-right: 60px;
  color: var(--muted);
}

.final-cta {
  padding: 88px 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,.5), transparent 30%),
    var(--cyan);
}

.final-cta__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}

.final-cta__eyebrow {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .16em;
}

.disclaimer {
  padding: 34px 0;
  color: var(--muted);
  background: #eef3f8;
}

.disclaimer h2 {
  margin: 0 0 6px;
  color: var(--ink);
  font-size: 14px;
}

.disclaimer p {
  margin: 0;
  font-size: 12px;
}

.site-footer {
  padding: 32px 0;
  color: rgba(255,255,255,.7);
  background: var(--navy);
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand--footer {
  color: var(--white);
}

.site-footer p {
  margin: 0;
  font-size: 12px;
}

.mobile-cta {
  display: none;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity .7s ease,
    transform .7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 1040px) {
  .nav {
    display: none;
  }

  .hero__grid {
    grid-template-columns: 1fr;
  }

  .hero__content {
    max-width: 860px;
  }

  .hero__visual {
    min-height: 720px;
  }

  .hero__image-frame {
    inset: 0 8% 0 8%;
  }

  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .step-card:nth-child(3) {
    transform: none;
  }

  .steps .step-card:last-child {
    grid-column: span 2;
    min-height: 260px;
  }

  .experience__grid,
  .faq__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .event-card {
    grid-template-columns: 1fr 280px;
  }
}

@media (max-width: 760px) {
  :root {
    --header-h: 66px;
  }

  body {
    padding-bottom: 74px;
  }

  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .announcement__inner {
    justify-content: flex-start;
    gap: 8px;
    overflow-x: auto;
    white-space: nowrap;
  }

  .announcement__link,
  .announcement__sep {
    display: none;
  }

  .site-header .button {
    display: none;
  }

  .hero {
    padding-top: 42px;
  }

  .hero__title-kicker {
    font-size: 28px;
  }

  .hero__title-main {
    font-size: clamp(52px, 18vw, 76px);
    white-space: normal;
  }

  .hero__title-bottom {
    font-size: clamp(50px, 17vw, 74px);
  }

  .hero__outline {
    -webkit-text-stroke-width: 1.4px;
  }

  .hero__lead {
    font-size: 16px;
  }

  .hero__meta {
    grid-template-columns: 1fr;
  }

  .meta-card + .meta-card {
    border-left: 0;
    border-top: 1px solid rgba(7, 27, 58, .12);
  }

  .hero__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero__actions .button {
    width: 100%;
  }

  .hero__actions .text-link {
    align-self: center;
  }

  .hero__visual {
    min-height: 530px;
    margin-top: 18px;
  }

  .hero__image-frame {
    inset: 0 0 0 0;
    border-radius: 120px 120px 24px 24px / 90px 90px 24px 24px;
  }

  .hero__sticker {
    width: 94px;
    font-size: 13px;
  }

  .hero__sticker--top {
    right: -8px;
    top: 44px;
  }

  .hero__sticker--bottom {
    left: -8px;
    bottom: 46px;
  }

  .hero__ticker {
    margin-top: 34px;
    overflow-x: auto;
  }

  .ticker__track {
    justify-content: flex-start;
    padding-right: 30px;
  }

  .section {
    padding: 80px 0;
  }

  .section-heading h2,
  .experience__copy h2,
  .faq h2,
  .event-card h2,
  .final-cta h2 {
    font-size: clamp(32px, 10vw, 48px);
  }

  .feature-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: 250px;
  }

  .feature-card__number {
    margin-bottom: 52px;
  }

  .steps .step-card:last-child {
    grid-column: auto;
  }

  .step-card {
    min-height: 300px;
  }

  .step-card__label {
    margin-top: 54px;
  }

  .experience__panel {
    min-height: 460px;
  }

  .event-card {
    grid-template-columns: 1fr;
    padding: 30px 22px;
    border-radius: 28px;
  }

  .event-detail {
    grid-template-columns: 1fr;
  }

  .event-card__date-block {
    order: -1;
    min-height: 260px;
  }

  .event-card__day {
    font-size: 116px;
  }

  .button--wide {
    width: 100%;
    min-width: 0;
  }

  .faq__grid {
    gap: 24px;
  }

  .accordion summary {
    font-size: 16px;
  }

  .accordion details p {
    padding-right: 20px;
  }

  .final-cta__inner {
    align-items: stretch;
    flex-direction: column;
  }

  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .mobile-cta {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 10px;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 56px;
    padding: 14px 20px;
    color: var(--navy);
    background: var(--lime);
    border: 1px solid rgba(7, 27, 58, .2);
    border-radius: 18px;
    box-shadow: 0 16px 42px rgba(7, 27, 58, .22);
    font-weight: 900;
  }
}

/* =========================================================
   ポスター・ヒーロー（ポスターを全面埋め込み）＋ CONCEPT 節
   2026-07-18 追加：文字の二重表示を解消し、一段プロ仕様に
   ========================================================= */
.hero--poster { padding: 40px 0 56px; }
.hero--poster__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 34px;
}
.hero__poster-figure { margin: 0; width: 100%; max-width: 600px; }
.hero__poster {
  display: block; width: 100%; height: auto;
  border-radius: 22px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.hero__cta {
  width: 100%; max-width: 680px;
  display: flex; flex-direction: column; align-items: center;
  gap: 22px; text-align: center;
}
.hero--poster .hero__meta { justify-content: center; margin: 0; }
.hero--poster .hero__actions { justify-content: center; margin: 0; }
.hero--poster .hero__note { margin: 0; }
@media (max-width: 720px) {
  .hero--poster { padding: 22px 0 40px; }
  .hero--poster__inner { gap: 26px; }
  .hero__poster { border-radius: 16px; }
}

.concept { background: var(--white); }
.concept__inner { max-width: 900px; margin: 0 auto; text-align: center; }
.concept__lead h2 {
  font-size: clamp(28px, 4.4vw, 44px);
  line-height: 1.3; letter-spacing: .01em; margin: 10px 0 0; color: var(--ink);
}
.concept__accent { position: relative; white-space: nowrap; padding: 0 .12em; }
.concept__accent::before {
  content: ""; position: absolute; left: 0; right: 0; bottom: .06em;
  height: .42em; background: var(--yellow); z-index: -1; transform: skew(-6deg);
}
.concept__body { margin: 26px auto 0; max-width: 660px; font-size: 16px; line-height: 2; color: var(--muted); }
.concept__body p { margin: 0 0 16px; }
.concept__body strong { color: var(--ink); font-weight: 700; }
.concept__flow {
  list-style: none; padding: 0; margin: 40px 0 0;
  display: flex; flex-wrap: wrap; align-items: stretch; justify-content: center; gap: 12px;
}
.concept__step {
  flex: 0 1 220px; background: var(--paper); border: 1px solid var(--line);
  border-radius: 18px; padding: 22px 18px;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
}
.concept__step-num { font-size: 12px; font-weight: 700; letter-spacing: .16em; color: var(--cyan); }
.concept__step strong { font-size: 20px; color: var(--ink); }
.concept__step > span:last-child { font-size: 13px; color: var(--muted); }
.concept__step--accent { background: var(--navy); border-color: var(--navy); }
.concept__step--accent .concept__step-num { color: var(--yellow); }
.concept__step--accent strong,
.concept__step--accent > span:last-child { color: var(--white); }
.concept__arrow { display: flex; align-items: center; color: var(--cyan); font-size: 22px; font-weight: 700; }
@media (max-width: 720px) {
  .concept__flow { flex-direction: column; align-items: stretch; }
  .concept__step { flex: 1 1 auto; }
  .concept__arrow { transform: rotate(90deg); align-self: center; }
}